Weak acids are often reported in terms of percent ionization and molarity. For example, a .35M weak acid is 13.2% ionized, what is the pH of the solution. The Python GUI would get you the answer quickly. pH would be 1.335! Code: #programmer: Ankan Basu, PG, CPG, Hydrogeologist/Geochemist from tkinter import * import math #Calculate…
Here I have another small but useful GUI application developed using Python tkinter GUI module. Enjoy. Watch the youtube video to check application by hand. #programmer: Ankan Basu, PG, CPG, Hydrogeologist/Geochemist from tkinter import * import math #calculate Kw for pure water from a given pH #We are writing this app as pH+pOH=!14 when…
If you ever had thermodynamics, you have definitely calculated Gibbs Free energy of a reaction. When the dG of a reaction is negative the reaction is spontaneous. When dG=0, the system is in equilibrium. Most of the problems would give you a reference reaction associated delta H (dH) of the reaction (enthalpy) in kJ/mol units…
WaterSense celebrates Fix a Leak Week Beginning March 17 WASHINGTON – Easy-to-fix household leaks account for more than one trillion gallons of water wasted each year across the United States, equal to the annual household water use of more than 11 million homes. In the race against water waste, the U.S. Environmental Protection Agency (EPA) is…
R-code to find margin of error, standard error and critical value from a range and confidence interval. Margin of error and standard error could be confusing. This program would help if when you have a statement like: “a 95% confidence interval for the average number of hours geologists have to code on an average work…
As I am getting ready for a midterm tomorrow for a statistics course I am doing online, I am building various R cheat codes that you may find useful. In the following R function below, you can easily calculate the critical value (z) based on a particular confidence interval. #Finding the critical value (z) for…
Recursion is an algorithmic technique where a function, in order to accomplish a task, calls itself with some part of the task. #Non-recursive function def it_sum(a_list): ”’this function iterates over the values in the variable a list”’ result = 0 for x in a_list: result += x return result x=it_sum([1,2,3,4,5]) print(x) def rec_sum(a_list): ”’ base…
If you are one of the guys who has been following me for last 12 months, you have probably noticed that I have been posting more and more complex codes for various application related to geology and chemistry. About last year (2013) I started developing interactive geological tools using SIMPLIGUI available from codeskulptor.com. Unfortunately, SIMPLEGUI…
This article introduces the amazing concept of classes in python. Follow the code and use it to calculate partial pressure of any gas. Notice how I have initialized the constants and used different methods for different simple tasks. When I first started with the Object Oriented Programming, it seemed really difficult. It still looks that…
I am about to start my second course in interactive programming in Python in two weeks. I have decided to refresh my memory with tkinter. I have previously used simplegui to develop all of my apps. Hoping to extend my knowledge to other guis, specially tkinter – the base GUI that comes with python core.…
This article presents a bunch of code snippets that you can use as a reference when dealing with normal distribution. R makes it easy to run stats. Use, improve and share your comments please. #the 68-96-99.7% rule for the normal distribution with regards to standard deviations #How to work with standard normal tables #What…
This article introduces functions within functions. We have used Bohr equations to calculate energy, wavelength and frequency of electrons during transfer between various orbitals. When you are studying the code, pay attention to the function calls which often used another function to get the result. In short, R-functions are reusable and you should re use…
If you liked college chemistry, you would know about the function we are going to define in R. I have also included couple of example solutions with the code. Calculating the photon energy when the wavelength is given is a very common problem in chemistry. You need to know the Plank’s constant and the speed…
